7191405

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 14152320

約数和(自身を除く): 6960915

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 585, 647, 741, 855, 1235, 1941, 2223, 3235, 3705, 5823, 8411, 9705, 11115, 12293, 25233, 29115, 36879, 42055, 61465, 75699, 110637, 126165, 159809, 184395, 378495, 479427, 553185, 799045, 1438281, 2397135, 7191405]

約数ペア:

[(1, 7191405), (3, 2397135), (5, 1438281), (9, 799045), (13, 553185), (15, 479427), (19, 378495), (39, 184395), (45, 159809), (57, 126165), (65, 110637), (95, 75699), (117, 61465), (171, 42055), (195, 36879), (247, 29115), (285, 25233), (585, 12293), (647, 11115), (741, 9705), (855, 8411), (1235, 5823), (1941, 3705), (2223, 3235)]